Analysis
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max time kernel
188s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01-12-2022 23:39
Static task
static1
Behavioral task
behavioral1
Sample
a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe
Resource
win7-20221111-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe
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Size
164KB
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MD5
5313f9c201fbaaf4be43d7d9e6249b89
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SHA1
5cf30234ad84577a51c8f3e72c0eda5f778a198c
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SHA256
a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29
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SHA512
d4387c753268dffd8e79a0cecacb6881ae4d1271a30ba44b0efac0197dac75a33159a4038632443d49fd3a53f4cd479042c8a19b00592e76a677a3b643583b9c
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SSDEEP
1536:alhtkWAlIS4i7TLhLsNgqi4Cr3DEaUJBYiVIHvUdR/eDoZJAO1dGV4VE:SWW04i7ZLsNgqE3ofJBYiVIiMDoZ3dG
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yuuunon.exe -
Executes dropped EXE 1 IoCs
pid Process 4392 yuuunon.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe -
Adds Run key to start application 2 TTPs 58 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /z" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /u" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /w" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /q" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /s" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /i" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /v" a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /z" a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /x" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /v" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /s" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /y" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /g" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /f" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /p" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /n" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /g" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /k" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /l" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /l" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /d" yuuunon.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /k" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /y" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /m" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /x" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /c" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /o" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /z" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /r" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /a" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /j" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /v" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /r" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /c" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /d" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /i" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /t" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /h" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /o" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /n" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /b" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /t" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /j" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /q" yuuunon.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /p" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /h" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /w" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /f" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /a" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /b" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /m" yuuunon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /u" yuuunon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /e" yuuunon.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuuunon = "C:\\Users\\Admin\\yuuunon.exe /e" yuuunon.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3220 a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe 3220 a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe 4392 yuuunon.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4392 yuuunon.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3220 a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe 4392 yuuunon.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3220 wrote to memory of 4392 3220 a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe 81 PID 3220 wrote to memory of 4392 3220 a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe 81 PID 3220 wrote to memory of 4392 3220 a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe"C:\Users\Admin\AppData\Local\Temp\a110d8607ae1ca197564f46341cb2ad1fc908c91319bd2108fa164db1f4feb29.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3220 -
C:\Users\Admin\yuuunon.exe"C:\Users\Admin\yuuunon.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:4392
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
164KB
MD5fc7280307c3bc9f59625fbcc3848d094
SHA156b2aafe26fc6efbb6f3950ff154b4e2314bdb41
SHA256fb47bdae0af29bf8d68837ea9d7afdc66594a1505d1fee51410d16328579cef4
SHA51219ce8a635d7a11bc0fb4483e7b2e2ed71021b03021981e809da3b310c2940cb26d1bd9d539a4a3d5e22fb7bae3a9354314dba4a9a4f66e0dd9308058c93da811
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Filesize
164KB
MD5fc7280307c3bc9f59625fbcc3848d094
SHA156b2aafe26fc6efbb6f3950ff154b4e2314bdb41
SHA256fb47bdae0af29bf8d68837ea9d7afdc66594a1505d1fee51410d16328579cef4
SHA51219ce8a635d7a11bc0fb4483e7b2e2ed71021b03021981e809da3b310c2940cb26d1bd9d539a4a3d5e22fb7bae3a9354314dba4a9a4f66e0dd9308058c93da811